To use the FontPacks:
Just copy to sdcard and flash as you would any update.zip (but you shouldn't need to change the file name). These are amend scripts so they require Amon Ra Recovery - they will not work with ClockworkMod Recovery. These only change the system font, so you can flash one on top of the other until you find one you like, but if you want to do a Nandroid Backup first, that’s ok too.

Use these at your own risk. On the off, off, off, chance that these break something in your phone, I won’t be held responsible.